Display apparatus having pixel including three transistors and two capacitors, and method of driving the same

Abstract

A display apparatus includes a plurality of pixels. A pixel includes a first capacitor connected between a first voltage line receiving a first driving signal and a first node, a first transistor comprising a control electrode connected to the first node, a first electrode connected to a second voltage line receiving a first power source signal and a second electrode connected to a second node, an organic light emitting diode comprising an anode electrode connected to the second node and a cathode electrode receiving a second power source signal, a second capacitor connected between an m-th data line and the second node (wherein, ‘m’ is a natural number) and a second transistor comprising a control electrode connected to an n-th scan line (wherein, ‘n’ is a natural number), a first electrode connected to the first node and a second electrode connected to the second node.

What is claimed is: 
     
       1. A display panel comprising:
 a plurality of pixels, wherein a pixel of the plurality of pixels comprises: 
 a light emitting element; 
 a first transistor comprising a control electrode connected to a first node, a first electrode configured to receive a first power source signal and a second electrode connected to a first electrode of the light emitting element; 
 a first capacitor connected between an initialization electrode and the first node; 
 a second transistor comprising a control electrode configured to receive a scan signal, a first electrode connected to the first node and a second electrode connected to a first electrode of a second capacitor; and 
 the second capacitor comprising the first electrode directly connected to the second electrode of the second transistor and a second electrode configured to receive a data voltage from a data line, 
 wherein no transistor is connected between the second electrode of the second transistor and the data line. 
 
     
     
       2. The display panel of  claim 1 , wherein the pixel of the plurality of pixels further comprises:
 a third transistor directly connected between the initialization electrode and the first electrode of the light emitting element. 
 
     
     
       3. The display panel of  claim 2 , wherein the third transistor is directly connected to the second transistor. 
     
     
       4. The display panel of  claim 2 , wherein the third transistor is directly connected to the second capacitor. 
     
     
       5. The display panel of  claim 1 , wherein the pixel of the plurality of pixels further comprises:
 a third transistor directly connected to the first electrode of the light emitting element, the first electrode of the second capacitor and the second electrode of the second transistor. 
 
     
     
       6. The display panel of  claim 1 , wherein the first electrode of the light emitting element is an anode electrode of the light emitting element. 
     
     
       7. The display panel of  claim 1 , wherein a second electrode of the light emitting element is configured to receive a second power source signal. 
     
     
       8. The display panel of  claim 7 , wherein the second electrode of the light emitting element is a cathode electrode of the light emitting element.